[VL] The time taken to merge payload during the shuffle write is excessively high

### Backend

VL (Velox)

### Bug description

The total time across all tasks for vanilla Spark was 78.1 hours, but for gluten it reached **1899.3** hours. The flame graph shows that the majority of time is occupied by the merging of payloads. After adding some logs, I see merge operation occurred 1522330 times for 1084128 rows in a task, with each instance taking a few milliseconds.

Flame graph:

gluten shuffle metrics:
```
shuffle records written: 39,407,858,231
shuffle write time total (min, med, max (stageId: taskId))
17.86 h (0 ms, 27.4 s, 17.1 m (stage 0.0: task 499))
time to compress total (min, med, max (stageId: taskId))
31.52 h (0 ms, 29.6 s, 20.3 m (stage 0.0: task 1191))
time to split total (min, med, max (stageId: taskId))
1478.09 h (0 ms, 45.5 m, 1.71 h (stage 0.0: task 86))
time to spill total (min, med, max (stageId: taskId))
15.77 h (0 ms, 25.2 s, 16.3 m (stage 0.0: task 499))
```
shuffle schema:

### Gluten version

Gluten-1.3

### Spark version

Spark-3.5.x

### Spark configurations

_No response_

### System information

_No response_

### Relevant logs

```bash

```